If you're interested in Great Lakes shipwrecks try the office of
Michigan's State Archaeologist, Dr. John Halsey, at the Bureau of History,
Lansing MI 48912.  Also Ken Pott, Director of the Michigan Maritime Museum,
which I believe is in Grand Haven.  Also, the Michigan Shipwreck Museum,
which is at Whitefish Pt, Lake Superior.  Halsey wrote a short synopsis of
Michigan's shipwreck legislation and issues a few years back; it appeared
in The Michigan Archaeologist 37 (1), 1991.  The issue theme was "Great
Lakes Archaeology: Submerged Sites," edited by Carrel Cowan-Ricks.  It has
a nice bibliography.  Good luck.  S Martin
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Susan R. Martin                                 Phone:  906 487 2366
Department of Social Sciences                   Fax: 906 487 2468
Michigan Technological University               e-mail: [log in to unmask]
Houghton MI 49931-1295  US of A